The Latest: Activists: at least 20 killed in Syria airstrike

FILE -- In this Oct. 10, 2016 file photo, Turkey's President Recep Tayyip Erdogan, left and Russian President Vladimir Putin, shake hands following the group photo at the World Energy Congress, in Istanbul, Turkey. With his victory in Aleppo, Syrian President Bashar Assad appears to have survived a nearly six-year war to drive him from power, but he is now more dependent on outside powers than ever. His key allies Russia and Iran, along with Turkey, are best placed to determine Syria’s endgame, which could more closely resemble a grand bargain among great powers than a political settlement among Syrians themselves. (AP Photo/Emrah Gurel, File)
(The Associated Press)

FILE - In this April 14, 2016, file photo, a Russian military camp is seen at the ancient city of Palmyra in the central city of Homs, Syria. U.S.-Russian talks on their separate fights against the Islamic State group are improving and becoming more frequent, American officials said. In the discussions, Russia has made clear its counterterrorism priority in Syria is retaking the ancient city of Palmyra, officials said. (AP Photo/Hassan Ammar, File)
(The Associated Press)

FILE -- In this Oct. 20, 2015 file photo, Russian President Vladimir Putin, right, and Syria President Bashar Assad arrive for their meeting in the Kremlin in Moscow, Russia. With his victory in Aleppo, Assad appears to have survived a nearly six-year war to drive him from power, but he is now more dependent on outside powers than ever. His key allies Russia and Iran, along with Turkey, are best placed to determine Syria’s endgame, which could more closely resemble a grand bargain among great powers than a political settlement among Syrians themselves. (Alexei Druzhinin, RIA-Novosti, Kremlin Pool Photo via AP, File)
(The Associated Press)

Syrian activists say at least 20 civilians have been killed in an airstrike on an Islamic State-held village in Deir el-Zour province in eastern Syria.

The Britain-based Syrian Observatory for Human Rights monitoring group reported Wednesday that several unknown warplanes bombed the village of Hajna the night before, killing 12 people from one family and 10 from another. It said at least 10 children were killed.

The activist group Deir Ezzor 24 said no one in the two families survived.

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10:15 a.m.

Turkey's state-run news agency says Turkey and Russia have reached an agreement on a plan for a cease-fire comprising the whole of Syria.

The Anadolu Agency, quoting unnamed sources on Wednesday, said the two countries were working to ensure that the cease-fire would come into effect after midnight.

It said however that terror organizations would be kept outside of the cease-fire agreement, without elaborating on which insurgent groups would be considered terror organizations. It said a peace process in Kazakhstan's capital of Astana would go ahead under Russia and Turkey's leadership if the cease-fire holds. Anadolu said the two countries would act as "guarantors" of the peace process.